PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C256Stem,fluid Valve

Hunt Valve Company, Inc. · NSN 4820-01-204-8465 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-204-8465 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-204-8465. Primary manufacturer part number: C256.
Features
  • Stem,fluid Valve — FSC 4820
  • 3 verified cross-references
  • Primary manufacturer: Hunt Valve Company, Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-204-8465, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hunt Valve Company, Inc.. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-204-8465
Primary Part NumberC256
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHunt Valve Company, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4330-00-204-338330-400-201 INTERCHANGEABLE
Filter Element,fluid
Wm W Nugent & Co Inc
5210-00-221-18825210-00-221-1882 INTERCHANGEABLE
Tape,measuring
General Services Administration Federal Supply Service
5340-00-244-7327 INTERCHANGEABLE
Seal,strapping
9390-01-171-4741C256 INTERCHANGEABLE
Bellows,protection
Haldex Brake Products Corporation
5998-01-394-1340C256 INTERCHANGEABLE
Circuit Card Assembly
Custom Power, Ltd.
Cross-Reference Index
Part NumberManufacturer
NB-0102-H-0250-B-6 Pima Valve, Llc (USA)
C256 PRIMARY Hunt Valve Company, Inc. (USA)
NB-0102-H-0250-B-6 Hunt Valve Company, Inc. (USA)
Related Parts
4330-00-204-3383INTERCHANGEABLE
FILTER ELEMENT,FLUID
30-400-201
5210-00-221-1882INTERCHANGEABLE
TAPE,MEASURING
5210-00-221-1882
5340-00-244-7327INTERCHANGEABLE
SEAL,STRAPPING
9390-01-171-4741INTERCHANGEABLE
BELLOWS,PROTECTION
C256
5998-01-394-1340INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
C256

Frequently Asked Questions

What is NSN 4820-01-204-8465?

NSN 4820-01-204-8465 is a Stem,fluid Valve, manufactured by Hunt Valve Company, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-204-8465?

NSN 4820-01-204-8465 has 3 cross-referenced part numbers: NB-0102-H-0250-B-6 (Pima Valve, Llc), C256 (Hunt Valve Company, Inc.), NB-0102-H-0250-B-6 (Hunt Valve Company, Inc.).

What NSN replaces 4820-01-204-8465?

There are 5 known substitutes for 4820-01-204-8465: 4330-00-204-3383, 5210-00-221-1882, 5340-00-244-7327 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C256?

Key specifications for C256: End Item Identification: VALVE,GATE,SIZE 2.500 IN.,PIMA INC FSCM 30263 IN; Special Features: NICKEL-COPPER-ALLOY;. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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